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Exemption 12555

Navigation Accuracy Category for position and Navigation Integrity Category Exemption (12555)

The FAA has granted Exemption 12555 with a strict, limited timeframe in which operators must equip with new navigation receivers. Exemption 12555:

  • does not exempt the requirement for ADS-B Out equipment to be installed and operational on aircraft flying in ADS-B rule airspace starting January 1, 2020.
  • does allow for the extended use of an older type of GPS navigation receiver already installed in some aircraft. All other ADS-B Out equipment requirements must still be met and operational by January 1, 2020.
  • was granted because the kind of GPS navigation receivers suitable for transport category aircraft that meet the ADS-B Out Rule requirements will not be available for purchase or installation in sufficient quantities until closer to 2020.
  • imposes certain conditions, limitations and additional pre-flight responsibilities on the operators.

No later than August 1, 2018 operators seeking the relief provided under Exemption 12555 must notify the FAA of their intent to comply with the conditions and limitations of the exemption and must develop and submit an initial GPS position Source upgrade plan to the FAA. Applicants must upload their Letter of Intent (LOI) to at and also submit your initial GPS position Source upgrade plan to Submission details and templates are given in the documents listed below.

Under the conditions and limitations of Exemption 12555 this must be done no later than August 1, 2018 or your ability to operate under its provisions may be at risk.

Exemption 12555 Documents

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